• Energy-efficient pet door featuring a flexible flap design for easy pet access
  • Quiet flap that is made of multiple horizontal plastic slats with magnets.
  • Magnetic airtight seal withstands high winds while ensuring a comfortable experience for pets
  • Aluminum-framed panel offers durability and sturdy installation
  • Secure locking cover enhances safety and security for your home
  • Available in small to extra-large sizes, accommodating pets of various breeds and sizes

High Tech Armor Flex Pet Door for Doors

Quiet Segmented Slats For High-Wind Airtight Seals

Regular price $399.99

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Engineered with quiet interlocking horizontal slats and a perimeter magnetic matrix, this heavy-gauge aluminum pet door delivers a wind-resistant airtight seal that protects your home without slamming shut.

  • Energy-efficient pet door featuring a flexible flap design for easy pet access
  • Quiet flap that is made of multiple horizontal plastic slats with magnets.
  • Magnetic airtight seal withstands high winds while ensuring a comfortable experience for pets
  • Aluminum-framed panel offers durability and sturdy installation
  • Secure locking cover enhances safety and security for your home
  • Available in small to extra-large sizes, accommodating pets of various breeds and sizes

Installation & Fit

  • Mounts into standard interior or exterior doors (wood, metal, hollow core, or fiberglass) using a self-framing interior and exterior aluminum clamp frame.
  • Adapts for through-the-wall installations when paired with the optional High Tech Armor Flex Wall Extension Tunnel.
  • Segmented horizontal slat flap integrates side magnetic channels to ensure automatic alignment upon full closure.
  • Includes a heavy-duty security locking cover that slides into internal frame grooves to physically block the opening.
  • Standard DIY installation using household tools (jigsaw, drill, screwdriver, level, tape measure); includes cutting template and all mounting hardware.

Best Suited For

Ideal for:

  • Segmented Flap & Wind Resistance: High-wind environments requiring horizontal slat rigidity and a rare-earth magnetic matrix for an airtight weather seal that won't blow open or slam loudly.
  • Homeowners seeking high thermal efficiency and a quiet alternative to rigid single-panel flaps.
  • Heavy-duty installations, featuring a powder-coated heavy-gauge aluminum frame and snap-in locking security cover.
  • Accommodating dogs and cats of various breeds from Small to Extra-Large sizes.

Not ideal for:

  • Timid, elderly, or injured pets who refuse to push open a manual flap (consider the motorized touchless High Tech Power Pet Door Mount for automatic opening).

Questions

Should I choose a single flap or a double flap?

A double flap traps a pocket of still air between the two panels, and that air gap is what does the insulating. If you have real winters, real summers, or a door that faces prevailing wind, the second flap is the difference you will actually feel.

A single flap is easier for a hesitant, small, elderly or recovering pet to push through, and it is the better choice in a mild climate or on an interior opening where insulation is not the point. If you are torn, consider which matters more day to day: the energy bill, or how confidently your pet uses the door.

What size hole do I need to cut?

Every pet door has a hole size that is smaller than the outside of its frame, and different again from the flap opening your pet walks through. The hole size is the one you mark on the door.

You will find it in the size guide on the product page, listed beside the flap and frame dimensions, and the installation instructions include a printable template you can tape in place before cutting. Mark from the template rather than from the frame itself. The frame overlaps the opening by design, so cutting to the frame leaves a hole that is too large to seal.

Will this fit the hole left by my old pet door?

Sometimes, but it is worth checking before you order rather than after. Pet door brands do not share a standard hole size, so a large from one manufacturer is rarely the same opening as a large from another, and a new door that is slightly smaller than the old hole cannot be made to cover it.

Measure the existing hole itself, height and width of the opening in the door or wall, not the frame around it. Compare that against the hole size in the size guide on the product page, which is listed separately from the flap size. If the new hole size is larger you can usually enlarge the opening. If it is smaller, look for a door with a wider frame that will cover the gap.

Explore all questions
Product Details

Product Details


The High Tech Pet Armor Flex Pet Door provides exceptional energy efficiency and security through an innovative segmented flap design and heavy-duty aluminum construction. Engineered for extreme weather, it gives your pets effortless freedom while maintaining a tight, wind-resistant seal.

Innovative Segmented Flap & Magnetic Seal
The flap is constructed from interlocking ABS composite segments that provide horizontal rigidity to seal tightly against the frame while offering vertical flexibility for smooth, safe pet passage. A matrix of rare-earth magnets lines the perimeter, maintaining an airtight seal that withstands high winds and severe weather.

Heavy-Duty Frame & Security Locking Cover
Built with industrial-grade, heavy-gauge aluminum and finished with a durable, scratch-resistant powder coating, the frame is engineered to resist daily wear and tear. An included secure locking cover snaps into place to prevent unauthorized access and keep your home safe when the door is not in use.

Technical Specifications & Features:

  • All-Weather Barrier: High-strength ABS composite flap and rare-earth magnetic seal maintain thermal insulation year-round.
  • Durable Construction: Heavy-gauge aluminum frame with a scratch-resistant powder-coated finish.
  • Flexible Installation Options: Designed for standard door mounting, with wall installation available via optional tunnel connectors.
  • Versatile Sizing: Available in Small to Extra-Large sizes to accommodate pets of all breeds.
Sizing & Fit

Size Chart

Flap Dimensions:

6.38"w x 13.5"h

The entry way your dog goes through.

Outside Frame Dimensions

10.88"w x 17.75"h

The outer edge of the pet door.

Small flap
Small frame
Small rough cut

Rough Cut Out:

9.38"w x 16.31"h

The size of the hole needed to fit your pet door into your wall.

Flap Dimensions:

8.25"w x 17.25"h

The entry way your dog goes through.

Outside Frame Dimensions

13.5"w x 22"h

The outer edge of the pet door.

Medium flap
Medium frame
Medium rough cut

Rough Cut Out:

11.25"w x 20"h

The size of the hole needed to fit your pet door into your wall.

Flap Dimensions:

10.5"w x 21.25"h

The entry way your dog goes through.

Outside Frame Dimensions

14.88"w x 25.5"h

The outer edge of the pet door.

Large flap
Large frame
Large rough cut

Rough Cut Out:

13.38"w x 24"h

The size of the hole needed to fit your pet door into your wall.

Flap Dimensions:

12.5"w x 25"h

The entry way your dog goes through.

Outside Frame Dimensions

17"w x 29.25"h

The outer edge of the pet door.

Extra Large flap
Extra Large frame
Extra Large rough cut

Rough Cut Out:

15.5"w x 27.88"h

The size of the hole needed to fit your pet door into your wall.

Flap Size Flap Dimension Rough Cut Out Outside Frame Dimension Recommended Pet Height
Small 6.38"w x 13.5"h 9.38"w x 16.31"h 10.88"w x 17.75"h 12" - 19"
Medium 8.25"w x 17.25"h 11.25"w x 20"h 13.5"w x 22"h 12" - 25"
Large 10.5"w x 21.25"h 13.38"w x 24"h 14.88"w x 25.5"h 12" - 31"
Extra Large 12.5"w x 25"h 15.5"w x 27.88"h 17"w x 29.25"h

Do not know which size to get? Here is a measurement guide to help you out

FAQs

FAQ

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